Got the game, and while my biggest fear with it, that it'd be /too/ much like the older ones is true, and not with as big of a difference as SMB1 to SMB3 or 3 to World, but it's still the first traditional SMB title in years, and is damn awesome.

How's the music in this one? Is it mostly the same classic Mario tunes and remixes or is there a lot of new stuff as well?

There are some new tunes, though I admit I haven't played every Mario game so they may just be new to me. However, I am digging the old tunes and their remixes quite a bit. Hearing the old castle fanfare from the original SMB is great.